IE9 supports transforms: -ms-transform: scale(1.5);. It works better than zoom; when comparing the results between IE9 and Chrome - it's not the same. (IE and Chrome handled <body> margins different with zoom, so went with -*-transform. IE versions before 9 bring other problems, had to disable the zooming feature. There are workarounds.)
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Joel PurraJun 5 '12 at 20:23